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# Copyright (C) 2004, 2005, 2006, 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cStringIO import StringIO
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from bzrlib.errors import (ConnectionError,
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from bzrlib.tests import TestCase, TestCaseInTempDir
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from bzrlib.transport import (_CoalescedOffset,
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_get_protocol_handlers,
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_set_protocol_handlers,
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_get_transport_modules,
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register_lazy_transport,
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register_transport_proto,
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_clear_protocol_handlers,
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from bzrlib.transport.chroot import ChrootServer
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from bzrlib.transport.memory import MemoryTransport
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from bzrlib.transport.local import (LocalTransport,
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EmulatedWin32LocalTransport)
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# TODO: Should possibly split transport-specific tests into their own files.
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class TestTransport(TestCase):
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"""Test the non transport-concrete class functionality."""
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def test__get_set_protocol_handlers(self):
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handlers = _get_protocol_handlers()
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self.assertNotEqual([], handlers.keys( ))
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_clear_protocol_handlers()
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self.assertEqual([], _get_protocol_handlers().keys())
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_set_protocol_handlers(handlers)
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def test_get_transport_modules(self):
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handlers = _get_protocol_handlers()
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class SampleHandler(object):
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"""I exist, isnt that enough?"""
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_clear_protocol_handlers()
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register_transport_proto('foo')
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register_lazy_transport('foo', 'bzrlib.tests.test_transport', 'TestTransport.SampleHandler')
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register_transport_proto('bar')
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register_lazy_transport('bar', 'bzrlib.tests.test_transport', 'TestTransport.SampleHandler')
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self.assertEqual([SampleHandler.__module__, 'bzrlib.transport.chroot'],
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_get_transport_modules())
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_set_protocol_handlers(handlers)
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def test_transport_dependency(self):
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"""Transport with missing dependency causes no error"""
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saved_handlers = _get_protocol_handlers()
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register_transport_proto('foo')
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register_lazy_transport('foo', 'bzrlib.tests.test_transport',
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'BadTransportHandler')
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get_transport('foo://fooserver/foo')
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except UnsupportedProtocol, e:
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self.assertEquals('Unsupported protocol'
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' for url "foo://fooserver/foo":'
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' Unable to import library "some_lib":'
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' testing missing dependency', str(e))
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self.fail('Did not raise UnsupportedProtocol')
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# restore original values
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_set_protocol_handlers(saved_handlers)
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def test_transport_fallback(self):
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"""Transport with missing dependency causes no error"""
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saved_handlers = _get_protocol_handlers()
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_clear_protocol_handlers()
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register_transport_proto('foo')
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register_lazy_transport('foo', 'bzrlib.tests.test_transport',
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'BackupTransportHandler')
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register_lazy_transport('foo', 'bzrlib.tests.test_transport',
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'BadTransportHandler')
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t = get_transport('foo://fooserver/foo')
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self.assertTrue(isinstance(t, BackupTransportHandler))
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_set_protocol_handlers(saved_handlers)
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def test_LateReadError(self):
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"""The LateReadError helper should raise on read()."""
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a_file = LateReadError('a path')
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except ReadError, error:
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self.assertEqual('a path', error.path)
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self.assertRaises(ReadError, a_file.read, 40)
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def test__combine_paths(self):
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self.assertEqual('/home/sarah/project/foo',
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t._combine_paths('/home/sarah', 'project/foo'))
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self.assertEqual('/etc',
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t._combine_paths('/home/sarah', '../../etc'))
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self.assertEqual('/etc',
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t._combine_paths('/home/sarah', '../../../etc'))
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self.assertEqual('/etc',
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t._combine_paths('/home/sarah', '/etc'))
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def test_local_abspath_non_local_transport(self):
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# the base implementation should throw
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t = MemoryTransport()
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e = self.assertRaises(errors.NotLocalUrl, t.local_abspath, 't')
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self.assertEqual('memory:///t is not a local path.', str(e))
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class TestCoalesceOffsets(TestCase):
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def check(self, expected, offsets, limit=0, fudge=0):
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coalesce = Transport._coalesce_offsets
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exp = [_CoalescedOffset(*x) for x in expected]
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out = list(coalesce(offsets, limit=limit, fudge_factor=fudge))
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self.assertEqual(exp, out)
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def test_coalesce_empty(self):
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def test_coalesce_simple(self):
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self.check([(0, 10, [(0, 10)])], [(0, 10)])
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def test_coalesce_unrelated(self):
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self.check([(0, 10, [(0, 10)]),
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], [(0, 10), (20, 10)])
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def test_coalesce_unsorted(self):
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self.check([(20, 10, [(0, 10)]),
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], [(20, 10), (0, 10)])
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def test_coalesce_nearby(self):
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self.check([(0, 20, [(0, 10), (10, 10)])],
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def test_coalesce_overlapped(self):
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self.check([(0, 15, [(0, 10), (5, 10)])],
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def test_coalesce_limit(self):
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self.check([(10, 50, [(0, 10), (10, 10), (20, 10),
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(30, 10), (40, 10)]),
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(60, 50, [(0, 10), (10, 10), (20, 10),
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(30, 10), (40, 10)]),
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], [(10, 10), (20, 10), (30, 10), (40, 10),
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(50, 10), (60, 10), (70, 10), (80, 10),
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(90, 10), (100, 10)],
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def test_coalesce_no_limit(self):
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self.check([(10, 100, [(0, 10), (10, 10), (20, 10),
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(30, 10), (40, 10), (50, 10),
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(60, 10), (70, 10), (80, 10),
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], [(10, 10), (20, 10), (30, 10), (40, 10),
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(50, 10), (60, 10), (70, 10), (80, 10),
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(90, 10), (100, 10)])
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def test_coalesce_fudge(self):
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self.check([(10, 30, [(0, 10), (20, 10)]),
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(100, 10, [(0, 10),]),
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], [(10, 10), (30, 10), (100, 10)],
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class TestMemoryTransport(TestCase):
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def test_get_transport(self):
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def test_clone(self):
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transport = MemoryTransport()
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self.assertTrue(isinstance(transport, MemoryTransport))
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self.assertEqual("memory:///", transport.clone("/").base)
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def test_abspath(self):
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transport = MemoryTransport()
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self.assertEqual("memory:///relpath", transport.abspath('relpath'))
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def test_abspath_of_root(self):
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transport = MemoryTransport()
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self.assertEqual("memory:///", transport.base)
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self.assertEqual("memory:///", transport.abspath('/'))
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def test_abspath_of_relpath_starting_at_root(self):
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transport = MemoryTransport()
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self.assertEqual("memory:///foo", transport.abspath('/foo'))
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def test_append_and_get(self):
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transport = MemoryTransport()
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transport.append_bytes('path', 'content')
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self.assertEqual(transport.get('path').read(), 'content')
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transport.append_file('path', StringIO('content'))
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self.assertEqual(transport.get('path').read(), 'contentcontent')
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def test_put_and_get(self):
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transport = MemoryTransport()
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transport.put_file('path', StringIO('content'))
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self.assertEqual(transport.get('path').read(), 'content')
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transport.put_bytes('path', 'content')
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self.assertEqual(transport.get('path').read(), 'content')
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def test_append_without_dir_fails(self):
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transport = MemoryTransport()
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self.assertRaises(NoSuchFile,
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transport.append_bytes, 'dir/path', 'content')
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def test_put_without_dir_fails(self):
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transport = MemoryTransport()
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self.assertRaises(NoSuchFile,
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transport.put_file, 'dir/path', StringIO('content'))
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def test_get_missing(self):
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transport = MemoryTransport()
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self.assertRaises(NoSuchFile, transport.get, 'foo')
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def test_has_missing(self):
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transport = MemoryTransport()
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self.assertEquals(False, transport.has('foo'))
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def test_has_present(self):
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transport = MemoryTransport()
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transport.append_bytes('foo', 'content')
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self.assertEquals(True, transport.has('foo'))
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def test_list_dir(self):
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transport = MemoryTransport()
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transport.put_bytes('foo', 'content')
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transport.mkdir('dir')
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transport.put_bytes('dir/subfoo', 'content')
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transport.put_bytes('dirlike', 'content')
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self.assertEquals(['dir', 'dirlike', 'foo'], sorted(transport.list_dir('.')))
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self.assertEquals(['subfoo'], sorted(transport.list_dir('dir')))
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def test_mkdir(self):
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transport = MemoryTransport()
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transport.mkdir('dir')
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transport.append_bytes('dir/path', 'content')
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self.assertEqual(transport.get('dir/path').read(), 'content')
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def test_mkdir_missing_parent(self):
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transport = MemoryTransport()
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self.assertRaises(NoSuchFile,
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transport.mkdir, 'dir/dir')
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def test_mkdir_twice(self):
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transport = MemoryTransport()
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transport.mkdir('dir')
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self.assertRaises(FileExists, transport.mkdir, 'dir')
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def test_parameters(self):
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transport = MemoryTransport()
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self.assertEqual(True, transport.listable())
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self.assertEqual(False, transport.should_cache())
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self.assertEqual(False, transport.is_readonly())
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def test_iter_files_recursive(self):
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transport = MemoryTransport()
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transport.mkdir('dir')
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transport.put_bytes('dir/foo', 'content')
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transport.put_bytes('dir/bar', 'content')
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transport.put_bytes('bar', 'content')
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paths = set(transport.iter_files_recursive())
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self.assertEqual(set(['dir/foo', 'dir/bar', 'bar']), paths)
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transport = MemoryTransport()
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transport.put_bytes('foo', 'content')
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transport.put_bytes('bar', 'phowar')
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self.assertEqual(7, transport.stat('foo').st_size)
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self.assertEqual(6, transport.stat('bar').st_size)
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class ChrootDecoratorTransportTest(TestCase):
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"""Chroot decoration specific tests."""
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def test_abspath(self):
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# The abspath is always relative to the chroot_url.
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server = ChrootServer(get_transport('memory:///foo/bar/'))
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transport = get_transport(server.get_url())
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self.assertEqual(server.get_url(), transport.abspath('/'))
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subdir_transport = transport.clone('subdir')
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self.assertEqual(server.get_url(), subdir_transport.abspath('/'))
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def test_clone(self):
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server = ChrootServer(get_transport('memory:///foo/bar/'))
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transport = get_transport(server.get_url())
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# relpath from root and root path are the same
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relpath_cloned = transport.clone('foo')
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abspath_cloned = transport.clone('/foo')
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self.assertEqual(server, relpath_cloned.server)
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self.assertEqual(server, abspath_cloned.server)
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def test_chroot_url_preserves_chroot(self):
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"""Calling get_transport on a chroot transport's base should produce a
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transport with exactly the same behaviour as the original chroot
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This is so that it is not possible to escape a chroot by doing::
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url = chroot_transport.base
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parent_url = urlutils.join(url, '..')
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new_transport = get_transport(parent_url)
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server = ChrootServer(get_transport('memory:///path/subpath'))
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transport = get_transport(server.get_url())
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new_transport = get_transport(transport.base)
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self.assertEqual(transport.server, new_transport.server)
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self.assertEqual(transport.base, new_transport.base)
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def test_urljoin_preserves_chroot(self):
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"""Using urlutils.join(url, '..') on a chroot URL should not produce a
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URL that escapes the intended chroot.
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This is so that it is not possible to escape a chroot by doing::
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url = chroot_transport.base
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parent_url = urlutils.join(url, '..')
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new_transport = get_transport(parent_url)
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server = ChrootServer(get_transport('memory:///path/'))
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transport = get_transport(server.get_url())
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InvalidURLJoin, urlutils.join, transport.base, '..')
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class ChrootServerTest(TestCase):
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def test_construct(self):
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backing_transport = MemoryTransport()
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server = ChrootServer(backing_transport)
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self.assertEqual(backing_transport, server.backing_transport)
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def test_setUp(self):
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backing_transport = MemoryTransport()
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server = ChrootServer(backing_transport)
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self.assertTrue(server.scheme in _get_protocol_handlers().keys())
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def test_tearDown(self):
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backing_transport = MemoryTransport()
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server = ChrootServer(backing_transport)
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self.assertFalse(server.scheme in _get_protocol_handlers().keys())
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def test_get_url(self):
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backing_transport = MemoryTransport()
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server = ChrootServer(backing_transport)
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self.assertEqual('chroot-%d:///' % id(server), server.get_url())
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class ReadonlyDecoratorTransportTest(TestCase):
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"""Readonly decoration specific tests."""
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def test_local_parameters(self):
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import bzrlib.transport.readonly as readonly
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# connect to . in readonly mode
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transport = readonly.ReadonlyTransportDecorator('readonly+.')
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self.assertEqual(True, transport.listable())
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self.assertEqual(False, transport.should_cache())
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self.assertEqual(True, transport.is_readonly())
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def test_http_parameters(self):
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from bzrlib.tests.HttpServer import HttpServer
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import bzrlib.transport.readonly as readonly
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# connect to . via http which is not listable
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server = HttpServer()
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transport = get_transport('readonly+' + server.get_url())
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self.failUnless(isinstance(transport,
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readonly.ReadonlyTransportDecorator))
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self.assertEqual(False, transport.listable())
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self.assertEqual(True, transport.should_cache())
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self.assertEqual(True, transport.is_readonly())
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class FakeNFSDecoratorTests(TestCaseInTempDir):
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"""NFS decorator specific tests."""
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def get_nfs_transport(self, url):
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import bzrlib.transport.fakenfs as fakenfs
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# connect to url with nfs decoration
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return fakenfs.FakeNFSTransportDecorator('fakenfs+' + url)
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def test_local_parameters(self):
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# the listable, should_cache and is_readonly parameters
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# are not changed by the fakenfs decorator
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transport = self.get_nfs_transport('.')
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self.assertEqual(True, transport.listable())
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self.assertEqual(False, transport.should_cache())
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self.assertEqual(False, transport.is_readonly())
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def test_http_parameters(self):
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# the listable, should_cache and is_readonly parameters
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# are not changed by the fakenfs decorator
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from bzrlib.tests.HttpServer import HttpServer
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# connect to . via http which is not listable
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server = HttpServer()
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transport = self.get_nfs_transport(server.get_url())
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self.assertIsInstance(
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transport, bzrlib.transport.fakenfs.FakeNFSTransportDecorator)
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self.assertEqual(False, transport.listable())
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self.assertEqual(True, transport.should_cache())
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self.assertEqual(True, transport.is_readonly())
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def test_fakenfs_server_default(self):
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# a FakeNFSServer() should bring up a local relpath server for itself
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import bzrlib.transport.fakenfs as fakenfs
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server = fakenfs.FakeNFSServer()
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# the url should be decorated appropriately
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self.assertStartsWith(server.get_url(), 'fakenfs+')
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# and we should be able to get a transport for it
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transport = get_transport(server.get_url())
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# which must be a FakeNFSTransportDecorator instance.
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self.assertIsInstance(
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transport, fakenfs.FakeNFSTransportDecorator)
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def test_fakenfs_rename_semantics(self):
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# a FakeNFS transport must mangle the way rename errors occur to
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# look like NFS problems.
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transport = self.get_nfs_transport('.')
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self.build_tree(['from/', 'from/foo', 'to/', 'to/bar'],
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self.assertRaises(errors.ResourceBusy,
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transport.rename, 'from', 'to')
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class FakeVFATDecoratorTests(TestCaseInTempDir):
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"""Tests for simulation of VFAT restrictions"""
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def get_vfat_transport(self, url):
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"""Return vfat-backed transport for test directory"""
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from bzrlib.transport.fakevfat import FakeVFATTransportDecorator
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return FakeVFATTransportDecorator('vfat+' + url)
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def test_transport_creation(self):
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from bzrlib.transport.fakevfat import FakeVFATTransportDecorator
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transport = self.get_vfat_transport('.')
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self.assertIsInstance(transport, FakeVFATTransportDecorator)
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def test_transport_mkdir(self):
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transport = self.get_vfat_transport('.')
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transport.mkdir('HELLO')
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self.assertTrue(transport.has('hello'))
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self.assertTrue(transport.has('Hello'))
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def test_forbidden_chars(self):
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transport = self.get_vfat_transport('.')
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self.assertRaises(ValueError, transport.has, "<NU>")
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class BadTransportHandler(Transport):
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def __init__(self, base_url):
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raise DependencyNotPresent('some_lib', 'testing missing dependency')
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class BackupTransportHandler(Transport):
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"""Test transport that works as a backup for the BadTransportHandler"""
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class TestTransportImplementation(TestCaseInTempDir):
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"""Implementation verification for transports.
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To verify a transport we need a server factory, which is a callable
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that accepts no parameters and returns an implementation of
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bzrlib.transport.Server.
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That Server is then used to construct transport instances and test
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the transport via loopback activity.
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Currently this assumes that the Transport object is connected to the
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current working directory. So that whatever is done
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through the transport, should show up in the working
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directory, and vice-versa. This is a bug, because its possible to have
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URL schemes which provide access to something that may not be
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result in storage on the local disk, i.e. due to file system limits, or
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due to it being a database or some other non-filesystem tool.
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This also tests to make sure that the functions work with both
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generators and lists (assuming iter(list) is effectively a generator)
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super(TestTransportImplementation, self).setUp()
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self._server = self.transport_server()
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self.addCleanup(self._server.tearDown)
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def get_transport(self):
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"""Return a connected transport to the local directory."""
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base_url = self._server.get_url()
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# try getting the transport via the regular interface:
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t = get_transport(base_url)
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if not isinstance(t, self.transport_class):
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# we did not get the correct transport class type. Override the
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# regular connection behaviour by direct construction.
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t = self.transport_class(base_url)
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class TestLocalTransports(TestCase):
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def test_get_transport_from_abspath(self):
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here = os.path.abspath('.')
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t = get_transport(here)
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self.assertIsInstance(t, LocalTransport)
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self.assertEquals(t.base, urlutils.local_path_to_url(here) + '/')
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def test_get_transport_from_relpath(self):
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here = os.path.abspath('.')
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t = get_transport('.')
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self.assertIsInstance(t, LocalTransport)
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self.assertEquals(t.base, urlutils.local_path_to_url('.') + '/')
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def test_get_transport_from_local_url(self):
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here = os.path.abspath('.')
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here_url = urlutils.local_path_to_url(here) + '/'
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t = get_transport(here_url)
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self.assertIsInstance(t, LocalTransport)
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self.assertEquals(t.base, here_url)
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def test_local_abspath(self):
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here = os.path.abspath('.')
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t = get_transport(here)
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self.assertEquals(t.local_abspath(''), here)
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class TestWin32LocalTransport(TestCase):
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def test_unc_clone_to_root(self):
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# Win32 UNC path like \\HOST\path
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# clone to root should stop at least at \\HOST part
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t = EmulatedWin32LocalTransport('file://HOST/path/to/some/dir/')
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self.assertEquals(t.base, 'file://HOST/')
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# make sure we reach the root
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self.assertEquals(t.base, 'file://HOST/')
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def get_test_permutations():
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"""Return transport permutations to be used in testing.
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This module registers some transports, but they're only for testing
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registration. We don't really want to run all the transport tests against
added
removed
bzrlib/tests/test_transport.py
